Improvement in plane-stocks



lUNITED STATES PATENT OFFICE.

LEONARD BAILEY, OF NEW BRITAIN, CONNECTICUT.

IMPROVEMENT IN PLAN E-srocKs.

Specication forming part of Letters Patent N0. 113,003, dated March, 1871.

I, LEONARD BAILEY, of New Britain, in the county of Hartford and State of Connecticut, have invented certain Improvements in Flexible-Faced Plane-Stocks, of whichA the following` is a specification:

My invention consists in the combination of the parts, ashereinafter described.

The accompanying drawing shows a side elevation, partly in section, of a plane-stock of my invention.

A designates the stock proper, which I prefer to make of cast met-al; but it may be made ot' any suitable material. B designates the flexible face-plate, which is made of springsteel, and secured to theunder side of the stock A, near the center of its length, by screws or rivets, in the ordinary manner.

At each end of the face-plate B is secured an arm, a a', connected thereto by means of a suitable hinge, b b'. The arms a a pass through the rocking shafts c c', which shafts are pivoted in each end of the stock A, in such manner as to easily rock or partially rotate.

By means of the set-screw d (shown at the left in the drawing) the arm a may be secured firmly in the rocking shaft c, or, if desired, the arm a may be threaded and held in place by l a nut, d', upon each side of the rocking shaft,

as shown at the right in the drawing.

The peculiar mechanism employed to secure or fasten the arms a a in the rock-shafts cis immaterial to myinvention. Each end ofthe stock A is made hollow or open, to allow free play to the arms a a.

The broken lines in the drawing indicate the position of the arms a a and face-plate B, with the latter bent into a concave form.

By releasing the set-screw d, so as to allow the arm a to pass freely through the rocking shaft c, the ends of the .face-plate B may be bent upward, forming the latter into a convex form.

The movement of either arm a a', in passing through the shaft c causes said shaft to rock on its pivots, when the end n of such arm a a moves in an inward as well as upward direction, and rests (when the ends of the face-plate B are bent upward to their full capacity) in the hollow of the stock A,'as shown in the drawing.

The face-plate B may be set with its ends at any point between the two positions herein shown.

I claim as my invention- In a flexible-faced plane-stock, substantially as described, the rocking shaft c c, pivoted in the stock A, and receiving the arms au of the face-plate B, all substantially as and for the purpose described.

LEONARD BAILE Y.

Witnesses.:

J AMES SHEPARD, CHAs. L. MEAD. 

